Reinhold



G. REINHOLD MANUAL CALCULATING DEVICE Sept. 3, 1963 Filed April 2v, 1962 YI |23 44A Xi 3 Sheets-Sheet 1 so "7b 4.23

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Fl G34 'Il '8o mann/h Gorfwill Reinhold INVENTOR.

sepi- 3, 12963 G. RELNHOLD v 3,102,686

MANUAL CALCULATING DEVICE Filed April 27, 1962 5 Sheets-Sheet 2 Goriwill Reinhold INVENTOR.

Sept. 3, 1963 G. REINHOLD MANUAL CALCULATING DEVICE 5 Sheets-Sheet 3 Filed April 27, 1962 FIG.8

8o 30o 9 36o INVENTOR,

United States Patent O 3,102,686 MANUAL CALCULATING DEVICE G'ottwill Reinhold, Bundesallce 177, Berlinf Wilmersdorf, Germany V Filed Apr. 27, 1962, Ser.,No. 190,760

20 Claims. (Cl. 23S-Sil) Another object of this invention is to provide an instrument of this type in which all the above operations can be carried out byy manipulation ofthesame limited number of relatively movable parts.

A funther |object of the invention is the provision of a calculating device which can be conveniently'combined with a pen, pencil or similar portable accessory normally carried by the user.

1 y-A principal feature of my present invention resides in the provision of tvvo nested elongated members, i.e. a shaft and a surrounding sleevewhich are relatively rotatable and axially slidable and of which the outer one, i.e. the sleeve, carries a series of links selectively settable toA indicate a digital value by the rotary entrainrnent of a digit wheel which .is mounted onthe inner member or shaft and Whose digital markings are viewable through a window in the sleeve.r The shaft, for convenience of handling,

' preferably projects endwise'beyondthe sleeve and may be shaped at its projecting extremity as a pen holder, pencil or the like. The links, `according to a morespecic feature of the invention, are inthe shape of double-armed elements or angles which are swivelably journaledfin cutouts of the sleeve wall and form an arcuate array over pant of the periphery of the sleeve, each angle having one arm which in its withdrawn or inoperative position-projects outwardly for engagement by a surrounding setting ring having an undercut portion whereby, upon rotation :of the ring around the sleeve, these outwardly projecting arms of a selected number of angles willy be consecutively depressed so that the other, inner angle arms project inwardly for entrainment of the digit wheel through the l intermediary of suitable transmission means within the sleeve. The transmission means may comprise a holder nonrotaltably mounted on the shaft, the holder carrying an eccentric pinion which meshes with gear teeth on the digit l wheel and has its own teeth positionedzfor engagement with-the operatively displaced angles.

In order to be able to perform multiplications and divisions as well as additions and subtractions on my miniature calculator, I divide the sleeve thereof into a totalizer sectionl and a counter section each containing a number Y of digit 'and counting wheels, respectively, depending upon the number of digital positions'or decades of the largest product or dividend and the largest multiplier or quotient to be handled. 'Ihe wheels of the two sections are substantially identical, yet only those of the totalizer section are stepped by the aforementioned links whereas those of the counter section are advanced, in respective axial sleeve positions, by a fixed internal projection onthe sleeve to count the number of sleeve revolutions; Thedi'git wheels of the totalizer section, moreover, are provided with tens- Atransfer means for entering a decimal carry from a lower denominational order in a higher one; such transfer meansy may include, according to still another feature of the iny 3,102,686 Patented Sept. 3, 1963 venrtion, 'a stepping member axially displaceable in the sleeve wall adapted to be cammed, preferably by a slide carried on the aforementioned pinion holder co-operating with a setting disk on the digit wheel of the next-lower denominational order or decade, to advance the higherorder digit wheel by one unit upon'rotation of the sleeve through a certain angular position relative to the shaft. These angular positions, staggered in peripheral direction for successive decades as is known per se, are advantageously distributed 4over one half of the sleeve periphery while the entraining links or angles are disposed along the other half thereof. In order to maintain the desired sequence between the stepping 'of a digit wheel and the transfer of va tens carry, each digit wheel is subdivided into two axially juxtaposed annular zones with separate rows of digital markings 0 9, the two zones of each wheel being relatively staggered by whereby subtractions and divisions will have zero positions diametrically offset from those used for additions and multiplications. The sleeve may lbe indexable for this purpose ina number of axially spaced p-airs of decadic positions, each position pair consisting of Ia left-hand and a right-hand position of which one aligns the sleeve windows with the rows of digital markings relating to addition and multiplication whereas the other exposes the rows intended for subtraction and division.

The above and other objects, features and advantages of my invention will become more apparent in the following detailed description of a preferred embodiment, reference being made to the accompanying kdrawing in which:

FIG. 1 is an elevational view of a calculating device according to the invention;

FIG. 2 is a perspective view of one side of a sleeve l FIG. 5 is a fragmentary'perspective illustration (pants lbroken away) of the totalizer and counter sections of the calculator with the associated wheel `assemblies shown in exploded View; f

FIG. 6 is `a cross-sectional view on a larger scale, taken on the line VI--VI'of FIG. l; v

FIG. 7 is asimilar cross-sectional View taken on the 'line Vll-VII off FIG.,5;

FIG. 8 is a fragmentary sectionalview of the totalizer section, showing twol adjacent `digitwheels thereof;

FIG. 9 is an exploded perspective view of one of the digit wheels and associated elements of FIG. 8;

FIG. k1() is Aan enlarged cross-sectional view taken on the Aline X-X of FIG. l;

FIG. l1 is aperspective detail View illustrating one of the links Visible in FIG. l0; and

FIG. jl2 is a fragmentary perspective view of the totalizer section with part of .a setting ring thereof broken away.

Reference will rst be made to FIG. l for a description of the external appearance of my pocket-size calculator. The device comprises a stem :1, adapted to receive at its free end `a writing implementv such as a pen point 52 shown in dot-dash lines, which projects from `an elongated sleeve 4 and is divided into a totalizer section A land la counter section B. A thimble 47a, formed with a longitudinal slot43a, and a ferrule 47b, having a similar slot 48h in alignment with the slot 48a, are xedly positioned on opposite ends of the sleeve 4 and form between them a peripheral gap occupied by =a series of digital setting rings 23. The slots 48a land 4811 register with windows 18a and 1gb in the sleeve proper, a Window 18a appearing also alongside a porti-on of each ring 23 terminating at an axially extending shoulder 123; the windows 18a in the totalizer section A and the windows '18b in the counter section B expose numerical markings on respective digit wheels 8a and counting wheels 8b. When shoul- -der 1,23 is rotated away from its window 18a, it exposes a -scale 44 withysirnilar digital markings 0e9; the associated window 18a constitutes the zero mark of that =sca1e.

Thus, as shown in FIG`. 1, kone or more wheels 23 rnay be displaced from their normal or zero position to register la triated. v

FIG. shows the interior of the totalizer and counter sections A rand B of FIG. l. The digit-wheels 8a and the counting wheels 8b, of which only one each is seen in that figure, are yindividually mounted on cylindrical 'bushings lila, b carried by a profiled central shaft Z which forms a rigid extension ofthe stem 1. Shaft 2 is shown pro-V y sleeve and axially slidable yon the shaft 2 to which it is confined by a pair of lock nuts 12.`

An extension 53 of stem 1 isrformed with a series of peripherallyy spaced pairs of annular grooves 3 and 3',

l these grooves Abeing axially interconnected by diametrically opposite channels 49, 49" (see als-o FIG. 7) having finite numerical value, eg. the number 2.101 as illusdampers 16a and 1Gb, project outwardlythrough portsv 117e, 117b (see FIGS. 1 and 6) in `the tubular sleeve attachments 47a, 47b and may bemanually pushed inwardly to occupy a position shown in dot-dash lines inV FIG. 6 in which they can engage a lug `6a, 6b respectively projecting from either wheel 8a, 8b. Rotation of sleeve 4 to the position shown in FIG. l, with pins 17a and 17b v held depressed, will clear the totalizer and counter sections A and B by restoring the digit and counting wheels to their aforementioned zero setting.

.Each of the whens sa, sb is rigid withv 1.arespective central gear 30a, 30h whose teeth are resiliently engaged by a pair ofaxially deformed radial'arms of an associated i indexing disk 7a, 7b which is nonrotatably mounted on depressions 5t) and 50' respectively aligned withfgrooves l 3 and 3. A ball check 13 in sleeve 4, loaded by a flat spring 51, is receivable in any of the left-handgrooves 3 and right-hand grooves 3 of the several pairs as well as in the depressions S0, 50' vvfor selectively indexing the sleeve in corresponding axial' positions. It will 'be apparent that, in order to pass from one groove into another,

the profiled shaft 2. The wheels are thus yieldably main'- tained either in their zero position or ina numerical position into which they can be displaced through the intermediary of transmission means including pinions 29a, 29b respectively inl mesh with their gears 30a, 3011., The

pinions 29a, 29h are eccentrically journaled, by means of pins 31a and 3112 (FIGS. 5, 9v and 10), on respective holders 9a and 9b which are nonrotatably supported on shaftZ next to the indexing disks 7a and 7b.' The lug 21 is alignable with the pinion `29b of any counting wheel 8b upon engagement of ball checky13with either groove 3, 3' of a respective pair; in the position of FIG. 131, for example, the ball 13 registers with the leftmost groove 3- of FIG.` 5 to align the lug 21 with the pinion 29b ofthe extreme left-hand or highest-order counting wheel 8b.

iThe cutouts 19, which are peripherally arrayed in as many groups of nine as there are setting rings` 23 on the sleeve 4, have swingably lodgedktherein respective` angular links 20 whose outer arms are normally urged outwardly, as illustrated in FIG. 10, by associated llat springs the ball check v13 must be aligned with eitherof the channels 49, 49'; the rotary positions of sleeve 4 in which this occurs will be referred to hereinafter las the Iadditive starty ing position (channel 49) and the subtractive starting po-4 sition (channel '49" 'Each digit wheel 8a and each counting wheel 8gb is subdivided into two axially juxtaposed annular zones: occupied -by two sets of digital markings 46a, 46a' and 46h., 4Gb',VV respectively. The rows 46a andr46b, used inaddition and multiplicatiomlare staggeredby 180 with Deference to the` corresponding rows 46a' and 4611' wherebyv the 0 mark of one row is next to the "5 mark of the adjacent row and vice versa. Moreover, the markings of rows 46a', 46a' and 4Gb all follow one another in the same ascending order whereas those of row 4Gb' are arranged pressions l50) whereas the 0 marks of rows 46a' and 46b' will be visible when the sleeve occupies its subtuactive in the opposite or descending order. The angular spacing i 45 (see also FIG. 11) having shoulders 145 bearing upon the outer periphery of sleeve 4. The several setting rings 23, respectively associated with the arcuate rows of angles 20, have an inner periphery 24 of small radius, closely hugging the outer surface of sleeve 4 on which they are rotatable, and are undercutto form an inner surface 26 of larger radius which clears the outer armsk of the angles 20 in -their outwardly projecting position. In this position the inner arms of the angles are withdrawn into the sleeve 4 and out of the path of the pinion 29a with which `they are axially aligned, it being noted that the angles are ywidev enough to maintain this alignment even when the sleeve 4 is shifted from a positive axial position (ball check 13 registering with any groove 3) to the associated negative axial position (grooves 3') orvice versa.

When the ring 23 is rotated to overlie one or more cutouts 19 with its small-radius periphery 24, it consecutively de- Vpresses the corresponding angles 20 sothat their inner turned around the shaft 2; In the course of such sleeve starting position (ball-check 13 in one of the depressions As best shown in FIGS. 2-4, vthe sleeve 4` exhibits besides windows 18a, 18b and ball Icheck `13 a multiplicity of cutouts 19 interleaved with the engraved scales 44; elongated slots Maand 14-b extending axially just below Ithe windows 18a and 18b respectively; shorter recesses 39 and 39' arranged .in two intersecting diagonal rows on the side of the :sleeve not occupied by the cutouts 19; land a lug 21 projecting inwardly from la locationin line with the diagonal row of recesses 39. A pair of dempers 16a and 1617, pivotally journaled in slots 14a and 14b, respectively,

are'normally held withdrawn in these slots by means of i springs 15 (see FIG. 6); pins 17aand 17b, fixed to theV automatically arrest the sleeve 4 revolution the operatively displaced angles 20 willsuccessively advance the pinion 29a and the gear- 30a in mesh Vtherewith so that the associated ldigit wheel 8a will be stepped through the selected number of angular positions Iand display a corresponding digital marking 'through the window 18a aligned with it. t y

The position of pinions 29a and 29h is so chosen, as will be apparent from FIG. 5, that their outermost teeth will register with the lugs 6a, `6b of the associated wheels 8a, 8b in their Zero positions so as to be engageable by the inner edge `of the depressed baffle 16a or L16b at the instant when the-wheel has been set to zero by this baille; Since the pinions 29a and 29h tend kto rotate in opposition to the lugs 6a and 6b, this simultaneous engagement will when ,the Idesired zero setting has been attained. l

The pinion holders 9a of the totalizer section A also form part of a transfer mechanism for entering a decimal carry from a lower in a higher denominational order. As best illustrated in FIG. 9, this transfer mechanism includes a slide 33 which is radially guided in the holder 9a and is indexable, yby means of two notches 34, 134 alternately en gageable by a spring 35 on the holder, in an inoperative and an operative position,v respectively. Secured to each lower-order digit-wheel 8a, on its left-hand side facing the slide 33 of the next-higher order, is a disk 36 bearing a single cog 37. Upon passage through a predetermined angular position, i.e. from 9 to 0 in the counterclockwise or additive sense (digit row 46a) and from to 9 in a clockwise or subtractive sense (digit row 46a), cog 37 cams aside a boss 38 on slide 33 which is thereby moved from its inoperative to its operative position within the limits imposed by its rectangular aperture 32 receiving the shaft 2. The recesses 39 and'39' of sleeve 4 have axially slidable therein, against the' force of respective springs 41, individual stepping members 40, 40' such as the T-shaped member 40 shown in FIGS. 8 and 9. This member is normally maintained by its spring 41 out of line -with the associated pinion 29a but can be cammed into alignment therewith by the beveled face 42 of the operatively positioned slide 33 upon being rotated past this slide in the second half of asleeve revolution. The angular staggering of the several members 40 and 40 (see FIGS. 3 and 4) causes this camming action to occur consecutively, in the course of either adding or subtracting sleeve revolution (clockwise and counterclockwise),

. for the successive decades of the totalizer section A. Any member 4t) or 40 cammed into alignment with its pinion.

, its notch 34. Asv will be apparent from FIGS. 3 an-d 4;

the negative lstepping members 40 are axially offset from the positive members 40 so as to register with the associated slides when the ball check 13 is in one of the grooves 3' rather than grooves 3.

The several rows of markings 46a, 46a and/or 46h,

46h' may be distinguished from one another, if desired,

by different coloring or background.

v aforedescribed operations.

'Io cancel the number stored in the totalizer section A, bame 16a is depressed and a :further revolution is irnparted to the sleeve whereby the register constituted by the wheels Sa is cleared in the manner previously'explained. Y

Subtraction With the apparatus again in its additive starting position, the minuend is entered in the totalizer section A by the procedure described for the lau-gend, i.e. with clockwise rotation of the sleeve. Next-,the sleeve is given half a turn in the counterclockwise yor subtractive sense until the b-all .13 registers with channel 49 in the subtractive startingposition; the sleeve is then axially shifted to the left by one groove spacing into negative position, i.e. until the ball 13 drops into the adjacent depression 50", whereupon the minuend previously appearing on digit rows 46a can be read lon the adjoining digit rows 46a now aligned with the windows 13a. The subtrahend is then registered on the scales` 414, this being followed by a `iinalsubtractive rotation of the sleeve 4 whereby the di-fference becomes visible in the windows 18a. Further `subtractions may be per-formed in the same manner.

Ilhe multiplicand is entered in the totalizer section A in the same. manner as the augend and the minuend in the With the setting wheels 23 maintained in their adjusted positions, and with the sleeve The operation of the calculating device according tothis invention will now be described:

Addition" With lche sleeve 4 indexed in the rightmost groove 3 (second :groove vfrom the free end-of` extension 53), an augend of one to six digits is registered on thescales of the sleeve by the uncovering of respective markings there-y fi' in the extreme right-hand positive position `as described for the adding operation, the' sleeve is rotated through as many revolutions as correspond to the unitsr digit -of the multiplier. When this units digit appears in the extreme right-hand window 18h of the counter section B, the sleeve 4 is axially shifted -to the left by one decadic spacing (i.e. until ball 13 clicks into the next depression whereupon the same sequence of rotation is performed for the tens digit of the multiplier. In this manner all the multiplier digits (upto live in the embodiment illustrated) are consecutively registered. When the appearance of the desired multiplier in windows 18b of counter section B is complete, the product is visible in the lwindows 18a of the totalizer section A.

I Division Again, as in the preceding instances, the rst number (i.e.` the dividend) is entered by an additive operation.

Next, after a reverse rotation through 180 as described for the subtracting operation, ythe divisor is registered on the sleeve scales 44 and the sleeve is axially shifted until its leftmost digit is aligned with the rst or the second significant left-hand di-git of lthe dividend, with the ball check dropping `into one of the depressions 50', wherey upon the sleeve 4 is rotated in asubtractive sense until the divisor is greater lthan the number appearing in corre-l l sponding windows 1817. The sleeve is then shifted to the right until ball 13 drops into another depression 50. The

(i.e. clockwise) through a `fnllrevolution, i.e. until the the numerical .value appearing in windows 18ct is aug" mented bythe amount of the addend. In like manner any number of further numerical items may be added to those previously entered, the total being exhibited in the windows 18a after the sleeve 4 has been returned toits additive starting position.

same .procedure is repeated for successive digits until finally, in the -units position, a remainder smaller than the divisor is registered on the digit wheels 8a as seen through the windows 18a. At this point the quotient can be read on the wheels 8b through the windows 1=8b on the counter section.y

The counter-clockwise rotation of the sleeve through in a division or subtraction operation is necessary in order to establish a position symmetrical to that shown in FIG. l0 for the pinions 29a, the angles 20` and the lstepping members 40, 40. This insures that in each case the digit wheels 3a will be advanced by the setting rings 23 in the first half of a revolution while the tens trans- 4fers, if any, will additionally step these wheels. in the without departing .from the spirit and` scope of the inven-l tion asdefined in the appended claims.

7 I claim: f 1. In a calculating device, in combination, a shaft, an

elongated `sleeve coaxially supported .on said shaft with freedom of relative rotation, an array of angularly vspaced links each individually displaceable on the inner periphery of said sleeve between an operative position and a with- Ndrawn positiommanually settable control means yon said sleeve selectively engageable with any number of consecutive rones of said links forv -adjusting them to said operative position thereof, a tfreely rotatable digit wheel on said shaft within said sleeve aligned with said array of links, transmission .means Within said sleeve coupled with said wheel and successively engageable by all of said links in operative position for stepping said Wheel-through a number of rotary positions corresponding to the number of operatively positioned links in the course of a revolution of said sleeve aronnd said shaft, said sleeve being provided with a windovv, and a set of digital markingsA on said wheel individually viewable through said v Window in respective rotary positions of said sleeve for indicating different digital values.

2.,I'the combination according to claim l wherein each of said links comprises a spring-loaded double-,armed element swingably mounted in said sleeve, one of the arms of said element projecting into the interior of said sleeve kin the operative position of said element, lthe other arm of said element projecting outwardly fromsaid sleeve inv said withdrawn position `for engagement by said control means. v y

3. The combination according to claim 2 wherein said controlmeans comprises a ringrotatable on said sleeve and provided with .an `undercut inner periphery for clearn ring all of said other arms of all of said elements in one lrotary position and consecutively depressing said other arms upon rotation from said one rotary position into other rotary positions relative to said sleeve.

4. The combination according to claim l wherein said "sleeve and said shaft are provided with cor-operating indexing means for releasably maintaining said sleeve in any olf said respective rotary positions.

5. The combination :according to claim l wherein said shaft is provided with bearing means for said sleeve on opposite sides of said digit wheel.

' 6. The combination according to claim y5, further comprising an elongated holderprojecting from said sleeve `as na'rigid coaxial extension of said shaft, one of said' bearoperative resetting means on `said sleeve positionable tfor K engagement with said projection, said pinion being dis-v posedfin the pathl of said resetting means for arresting same in a position in which said digit Wheel displays a zero indication through said window upon entrainment of said pnojection by said resetting means. i

V9. A calculating device comprising a shaft; van with freed-om of rotary displacement relative thereto;

a plurality :or axially separated digit wheels-freely rov tatable on said shaft within said sleeve, each of said wheels being provided on its periphery with a set of digital markings representing differenty numerical .values fromO to 9, the markingsof each of said. digit Wheels constituting a respective decimal denomination of a total to be registened `on said digit wheels,

` said sleeve being provided with a plurality of winldows for` the viewing in any of ten rotary wheel positions ofa single marking of e-ach digit Wheel;

Y a plurality of axially separated arrays of ten angularly spaced links each individually displaceable on elongated sleeve coaxially supported on said shafty the inner periphery :of said sleeve between an operative position and a withdrawn position, each of said arrays of links bein-g axially aligned with a respective digit wheel; y manually settable control means on said sleeve selectively engageable with any number of consecutive ones of said links `of each arr-ay for adjusting them t-ov said operative position thereof; transmission means in said sleeve for each of said digit wheels successively engageable with-al1 the operatively positioned links of ta respective array -for stepping the associated digit lwheel through a number of Y said rotary wheel positions corresponding to the number of links so positioned in the course of a revolution of said sleeve karound said shaft wherebyv a totalizing operation can Ibe carried ront upon rotan means of the next-higher denomination whereby the Y transmissionv means of said next-higher denomination is stepped 'by one digital unit during a predetermined part of a sleeve revolution, said transfer means further including restoring means for returning said member to said normal ineifective position during a subsequent part of a sleeve revolution. y 1G. A device `according to claim 9 'wherein said stepping member is axially slidable on said sleeve, said setting means including a peripheral tooth on each `ol? said adjacent `digit Wheels and .a slide nonrotatably mounted on said shaft for radial displacement by said tooth froma normalV position into camming en-gagement with said member vllhereby the latter is shifted toward the digit` wheel of the next-higher denomination.

l1. A device according tol claim l0 wherein said restoring means comprises an internal projection on said sleeve for returning said slide to its normal position, and spring means eiiective upon such return for shifting said member away from said digit-wheel of 'said next-higher denomination. l

l2. A calculating device comprising a shaft; an elongated sleeve coaxially supported yon said shaft with freedom of rotary and axial displacement relative the-reto;

co-operating indexing means on said shaft and said sleeve for yieldalbly retaining the latter in either of two taxial positions;

a plurality `of axially separated digit Wheels freely rotatable on said shaft within said sleeve, each of said Wheels fbeingdivided into two axially juxtaposed peripheral portions respectively provided with a first and a second set of digital markings representing i. :diiiierent numerical values from 0 to 9., the markings vof each of said digit wheels ,constitutingv a respective decimal denomination of a total to be registered on said digit wheels, said sleeve being provided with a plurality of windows for the viewing in any of ten rotary wheel positions of a single marking of said irst and said second set of each digit wheel in a y respective axial position of said shaft; a plurality of ,axially separatedarrays of ten angularly f spaced links each individually displaceable on the inner periphery 'of said sleeve between an operative position and a withdrawn position, eachlof said arrays of links being axially aligned with a respective l digit wheel;

s,1o2,ese

lmanually settable control means on saidsleev-e selectively engageable with any number Iof consecutive ones of said links of each array `for adjusting them to said ope-native position thereof;

transmission means in said sleeve for each of .said digit `wheels lsuccessively engageable with all the operatively positioned links of a respective array for stepping-the associated digit Wheel through a nurnber of said rotary wheel positions corresponding to the number or links so positioned in the cou-rse of a revolution yof said sleeve around said shaft whereby additive and subtractive calculations can lbe carried out upon rotation of said sleeve in a respective sense and in a respective axial` position about said shaft; and transfer means on the inner periphery of said sleeve adjacent each of said digit wheels except the one of the highest decimal denomination for entering7 a decimal carry 'from a lower denomination in the next-higher one, said transfer means including a stepping member movable relatively to said sleeve, the digitwheels adjacent said transfer means being each provid-ed with setting means effective in a predetermined rotary digit-wheel position for displacing said member `from a normal ineffective position into .an Yeffective position aligned with said transmission means of the next-higher denomination whereby the transmission means `of `said next-'higher denomination is stepped by one digital unit during a predetermined pfart of a sleeve revolution, said transfer means further including restoring means for returning said member to said normal ineffective position during a subsequent part of a sleeve revolution.

13. A'device according to claim l2 wherein the stepping members of all of said transfer -means are divided into two groups axially staggered relatively to each other for co-openation with the associated setting means in a respective axial position of said sleeve, said axially staggered stepping members being angularly oset from leach other` to a different extent in each of said transfer fmeans, said stepping members being distributed over one peripheral half `and said links being distributed over the opposite peripheral half of said sleeve.`

14. A calculating device comprising a shaft;

lan elongated sleeve coaxially supported on said shaftl with freedom of rotary displacement relative thereto, said sleeve being axially subdivided into a totalizer section and a counter section;

1a plurality of axially separated digit wheels and at least one counting wheel freely rotatable on said shaft within said totalizer Isection and said counter section, respectively, each of sai-d Wheels being provided on its periphery with ya set of digital markings representing different numerical values from to 9, the markings of each of said digit Wheels constituting a-respective decimal denomination of a total to :be registered lon said digit Wheels, said sleeve fbeing provided lon said totalizer and counter sections with a plurality of Windows for the viewing in any of ten rotary wheel positions of a single marking of each 1digit and counting wheel;

a plurality of axially sepanated arrays of ten angularly spaced links each individuallydisplaceable on the inner periphery of said totalizer section between an :operative position and a withdrawn position, each v of said arrays of links ylbeing axially aligned with a respective digit wheel;

manually settable control means on said sleeve selec-` tively engagealble with any ynumber of consecutive .iones of said links of each array for adjusting them to said operative position thereof;

transmission means in said totalizer section for each of said digit wheels successively engageable with all. the

' operatively positioned-links of -a respective array for `stepping the associated digit wheel lthrough a number ot said rotary wheel positions corresponding to the number of links so positioned in the course of .a revo- `of said sleeve about said shaft;

transfer means on the inner periphery of said totalizer section adjacent each of said digit Wheels except the one of 'che highest decimal ydenomination for entering a decima-l carry Ifrom a 'lower denomination in the next-higher one, said transfer means including a stepping member movable relatively to said sleeve, the digit wheels yadjacent said transfer means being each provided With setting means effective in a predetermined rotary 4digit-wheel position `for displacing said member from a normal ineffective position into an effective position aligned with said transmission means of the next-higher denomination whereby the transmission means of lsaid next-higher denomination is stepped by one digital unit during a predetermined part of a sleeve revolution, Isaid transfer -means further including restoring means for-returning said member to said normal ineffective position during a subsequent part of a sleeve revolution;

and means including an internal projection kon'said 1 l5. A calculating device comprising a shaft;

an elongated sleeve coaxially supported `on said shaft with. freedom of rotary displacement relative thereto, said sleeve being axially subdivided into a totalizer section and a counter section;

a plurality of axially separated digit wheels and a plurality of counting wheels corresponding to the num-ber of said pairs of axial positions, said digit Wheels and said counting wheels being freely rotatable on said shaft within said totalizer section and said counter section, respectively, each of said wheels being provided on its periphery with a set of digital markings representing different numerical values from 0 to 9, the markings of each of said digit wheels constituting a respective decimal denomination ofya total to be registered on said digit wheels,

said sleeve being provided on said -totalizer section and said counter section with a plurality of windows yfor the viewing in any of ten rotary wheel positions of a single marking of each digit and counting wheel;

a plurality of axially separated arrays of ten angularly spaced links each individually displaceable on the inner periphery of said totalizer section' between an operative position and a Withdrawn position, each of said arrays of links being axially aligned with a respective digit wheel;

manually settable control means on said sleeve selectively engageable with any number of consecutive ones of said links of each array for adjusting them tosaid operative position thereof;

transmission means in said totalizer section `for each of said digit wheels successively engageable with all the Ioperatively positioned links of a respective array for stepping the associated digit Wheel-through a number of said rotary wheel positions corresponding to the number of links so positioned in the course of a revolution of said sleeve around said shaft whereby a totalizing operation can be carried out upon rotation of said sleeve about said shaft;

transfer means on the inner periphery of said totalizer section adjacent Veach of said digit wheels except the one `of the highest denomination for entering a decimal carry from a lower denomination in the next-higher one, said transfer means including a stepping rnernbertmovable relatively to said sleeve, the digit wheels :adjacent said transfer means being each provided With setting means effective in a predetermined rotary digit-wheel position for displacing said member frorn a normal ineffective position into an effective position aligned with said transmission means of the next-higher denomination whereby the transmission means of said next-higher denominati-on is stepped by one digital'unit during a predetermined part of a sleeve revolution, said transfer means further including restoring means for returning said member to said normal ineffective position during a subsequent part of a sleeve revolution;

and means including an internal projection on said counter section for stepping each of said counting wheels by one digital -unit in a respective pair of axial sleeve positions 4upon each revolution of sai sleeve about said shaft.

16. Acalcul'ating dev-ice comprising a shaft;

[an elongated sleeve coaxially supported on said shaft with freedom of rotary and axial displacement relative thereto, said sleeve being axially subdivided into a totalizer section and a counter section;

`co-operating indexing means on said shaft and said `sleeve for yieldably retaining the latter in either of two axial positions;

a plurality of axially separated digit wheels and at least one counting wheel freely rotatable on said shaft-within said totalizer section and said counter section, respectively, each of said wheels being divided into` two axially juxtaposed peripheral portions respectively provided with a first and Ia second set of digital markings representing different numerical valuesfrom to 9, the markings of each of said digit Wheels constituting a respective decimal denomination of a ktotal to be registered on said digit wheels, said sleeve being provided on said totalizer and counter sections with -a plurality of windows for the viewing in any of ten rotary wheel positions of a single marking of said first and said second set of each digit and counting wheel in a respective axial position of said shaft;

a plurality of axially separated arrays of ten angularly spaced links each individually displaceable on the inner periphery of said totalizer section between an operative position and a withdrawn position, each of said arrays of links being axially aligned with a respective digit wheel;

manually settable control means on said sleeve selectively engageable with any number of consecutive ones lof said links for each array for adjusting them to said operative position thereof;

transmission means in said totalizer section for each of said d-igit wheels successively engageable with all ,the operatively positioned links of a respective array for stepping the associated digit wheel through a number of said rotary wheel positions corresponding to the number of links so positioned in the course of a revolution `of said sleeve around said shaft whereby additive and subtractive calculations can be carried out upon rotation of said sleeve in a respective sense `and in a respective axial position about said shaft; transfer means on the inner periphery of said total-iler section adjacent each of said digit wheels except the one of the highest decimal denomination for entering a decimal carry `from a lower denomination in the next-higher one, said transfer means including a stepping member movable relatively to said sleeve,the digit wheels adjacent said transfer means being' each provided with setting means effective in 1a predetermined rotarydigit-wheel position for displacing said member from a normal ineffective position into an effective position aligned with said transmission means of the next-higher denomination whereby the transmission means of said next-higher denomination is stepped by one digital unit during a predetermined part'of a sleeve revolution, said transfer means further including restoring means for returning Vsaid member to said normal ineffective position during a subsequent par-t of a sleeve revolution;

and -means including :an internal projection on said counter section for stepping said counting Wheel by one digital unit upon each revolut-ion of said sleeve about said shaft.

17. A device according to claim 16 wherein said first Y and second sets of digital markings of said digit wheels and said first set of digital markings of'said counting wheel ascend in one sense of rotation and said second set of digital markings of said counting wheel ascend in the opposite direction of rotation.

1S. A device according to claim l7 wherein said first and second sets of digital markings on each digit wheel are staggered by substantially 19. A calculating device comprising ka shaft; an elongated sleeve cofaxiallly supported on said shaft with freedom of rotary :and 'axial displacement relative thereto, said sleeve being axially subdivided into a totalizer section anda counter section; co-oper-ating indexing means on said shaft and said sleeve lfor yieldably retaining the latter infany of *a plurality of pairs of juxtaposed first and second axial positions;

La plurality of axiallly separated digit wheels and aV plunality of counting wiheels corresponding to the number of said pairs of axial positions, said ldigit wheels and said counting wheels being freely rotatabile on said shaft within said ltotalizer section and said counter section, respectively, each of said wheels `being divided into two axially juxtaposed peripheral portions respectively provided with a first and a sec! ond set of digital markings representing different numerical values from 0 to 9, the markings of each of said `digit Wheels constituting a respective decimal denomination of a total to be registered on said digit Wheels, said sleeve being provided on said totallizer land.` counter sections With a plurality of windows for the viewing in any of ten rotary wlheel positions of a single marking of said rst and said'seoond set olf each digit and 'counting wheel in fa respective first and second axial position of said shaft;

a plurality of axially separated arrays of ten angulanly spaced iinks each individually d-ispilaceable on the inner periphery of said totalizer section lbetWeen an operative position land a withdrawn position, each of said arrays of links [being axially aligned with a respective digit Wheel; f

manually settafble control means on said Isleeve ,selectively engagea-ble with any number of consecutive ones of said links of each array forwadjusting them to said operative position thereof;

transmission means in said totalizer section for each of said digit wheels successively engageable with all the operatively positioned links of a respective array for stepping the associated digit wheel through a number of said rotary wheel positions corresponding to the number of [links so positioned in the course of a revolution of said sleeve around said shaft whereby additive land subtractive calculations can be carried out uponrotation of,v said sleeve in a respective axial position about said shaft;

transfer means on the inner periphery of said totalizer section adjacent each of said digit wheels except the one orf the highest decimal denomination for entering a decimal carry from a lower denomination in the next-higher one, said transfer means including 'a stepping member movable relatively to said sleeve, the digit wheels adjacent said transfer means being each provided with setting'rneans `effective in la predetermined motary digit-wheel position for displacing said member from a normal ineffective position into an effective position aligned with said transmission means of the next-higher denomination whereby the transmission means of said next-higher denomination is stepped by one digital unit during a predetermined part of 'a sleeve revolution,` said transfer means further including restoring means (for returning [said member to said normal ineffective position during a subsequent part of a sleeve revolution; v and means including an internal projection 1on said counter section for stepping each of said counting wheels lby one digital unit in a respective pair of 'axial 14 Isleeve positions upon each revolution of said sleeve aibout said shazft.

20. A device according to claim 19, further comprising la holder pnojecting -fro'm one end of said sleeve :as a rigid coaxial extension orf said shaft, said indexing means including a portion of said holder provided with a plurality of annular grooves and a =bal1 "check on said sleeve receivfzuble in said grooves.

No references cited. 

1. IN A CALCULATING DEVICE, IN COMBINATION, A SHAFT, AN ELONGATED SLEEVE COAXIALLY SUPPORTED ON SAID SHAFT WITH FREEDOM OF RELATIVE ROTATION, AN ARRAY OF ANGULARLY SPACED LINKS EACH INDIVIDUALLY DISPLACEABLE ON THE INNER PERIPHERY OF SAID SLEEVE BETWEEN AN OPERATIVE POSITION AND A WITHDRAWN POSITION, MANUALLY SETTABLE CONTROL MEANS ON SAID SLEEVE SELECTIVELY ENGAGEABLE WITH ANY NUMBER OF CONSECUTIVE ONES OF SAID LINKS FOR ADJUSTING THEM TO SAID OPERATIVE POSITION THEREOF, A FREELY ROTATABLE DIGIT WHEEL ON SAID SHAFT WITHIN SAID SLEEVE ALIGNED WITH SAID ARRAY OF LINKS, TRANSMISSION MEANS WITHIN SAID SLEEVE COUPLED WITH SAID WHEEL AND SUCCESSIVELY ENGAGEABLE BY ALL OF SAID LINKS IN OPERATIVE POSITION FOR STEPPING SAID WHEEL THROUGH A NUMBER OF ROTARY POSITIONS CORRESPONDING TO THE NUMBER OF OPERATIVELY POSITIONED LINKS IN THE COURSE OF A REVOLUTION OF SAID SLEEVE AROUND SAID SHAFT, SAID SLEEVE BEING PROVIDED WITH A WINDOW, AND A SET OF DIGITAL MARKINGS ON SAID WHEEL INDIVIDUALLY VIEWABLE THROUGH SAID WINDOW IN RESPECTIVE ROTARY POSITIONS OF SAID SLEEVE FOR INDICATING DIFFERENT DIGITAL VALUES. 